This is surely the most ambitious and the most accomplished study of affluent post-World War II democratic welfare states. It uses statistical, case study, and comparative historical methods to describe and explain the course of social welfare policy over the second half of the twentieth century in 16 nations. Quantitatively, the study examines social insurance and service programs, major public expenditure and revenue aggregates, and an array of fine-grained indicators of state redistributive and safety net outcomes, from 1960 through 1994. Somewhat more qualitatively, the study extends its reach to encompass job and gender, labor market, and educational policies over the whole 1945–1996 period. Using both quantitative and qualitative methods of explanatory analysis, the work assesses various accounts of welfare state development and crisis, in particular, its authors' institutionally amplified, class-analytical political resource theory.